Air-filter.



l. Z. HANSON.

AIR FILTER.

A`PPL|CATION FILED DEC.12. |916.

Patented Sept. 25, 1917.

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A nlm/EVS Tan sTaTns PATENT voTruien'.

JOHN ZACIUS `I-IANSGIN', OF POCATELLO. ID'HCI.

AIR-FILTER.

Specification of Letters Patent. y Patented Steph 25, 1917..

Application le'd December 12, 1916. *Serial 1\T o. 136,579.

T all 'whom t may concern.'

Be it known that LJOHN Z. HANsoN, a citizen of the United States, anda resident of Pocatello, in the county of Bannock and State of Idaho, have invented .certain new and useful Improvements in Air-li`ilters, of

which the following is a specification.

, the adjacent sets to form a tortuous path for the air, and the provision of means for automatically maintaining said strips in a sate urated condition.

My invention is fully described in the following specification, of which the accompanying drawings form a part, in which like characters refer to like parts in each of the views, and in which l Figure lisa fragmentary plan view of a warm air heating system provided with my invention, partly broken away and also partly in section;

Fig. 2 is a section taken on the line' 2-2 of Fig. l;

Fig. 3 is a section taken on the line 3-,-3-

of Fig. l; and Fig. 4 is a perspective view of one of the units of my device, detached.

Referring to the drawings 5 represents a warm air furnace and 6 the return pipe between which my invention is arranged in the present embodiment, said invention comprising a casing 7 provided with a removable cover 8, with a water supply pipe 9 and an overflow pipe 10 leadingthereto and therefrom adjacent the top thereof and to and from a reservoir 1l including a channed on each side of the casing 7 and a plurality of transverse channels l2 communicating at their ends with the side channelsthe transverse channels being preferably spaced at equidistant points, although not necessarily so.

Lying in each transverse channel l2 is a holder 13 for a plurality7 of strips or streamers 14 held by their ends'therein and spaced apart to provide openings therebetween,

these strips depending from the respective channels and extending approximately toA Vthe bottom of the casing? and, as stated,

and as shown in Fig. 1, l stagger the strips lin the adjoining units or sets whereby the lair passing through the casing must come in contact with the strips and will follow a tortuous path.

The strips lll are maintained in a saturated condition by capillary attracation, on

the principle of a lamp-wick, and the air passing through the casing 7 is therefore moistened with the consequent benefit to the occupants of a house equipped with my invention.

The strips .are provided of a width and spaced apart for distances allowing full volume of air and they may be made of any suitable material wherein water is absorbed by capillary attraction, and said strips also serve to remove dust or extraneous matter carried by the air from the air, such dust or other matter being deposited upon the strips 14. Because of the manner of suspending the strips 14 the several units may be readily removed at will for cleansing and, becausey of their low cost, eXtra' units may be carried for4 use when one set of units is being washed and dried, although the drying thereof is not necessary if they are to be used at once as will be understood.

While ll have shown a preferred method of suspending the strips to insure a constant dampening thereof, l do not desire to limit myself thereto, as other methods equally efcient may suggest themselves and be within the spirit of my invention and within the scope of the appended claims.

Having fully described my invention,v

what ll claim as new, and desire to secure by Letters Patent, is

1. A. device of the class described for use in the return connection of a furnace, comprising a plurality of units longitudinally placed in such connection and consisting each of a plurality of absorbent strips the strips of each unit staggered with relation to those of adjacent units and means for maintaining said 'strips in a state of saturation.

2. A device of the class described for use in the return connection of a furnace, comprising a plurality of units.l each unit consisting of a plurality of absorbent strips, the strips of each unit staggered with relation to the strips of an adjacent unit, and means for maintainingsaid strips in a state of saturation capilliary attraction.

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3. As an article of manufacture for use in the return connection of a furnace, a casing (provided yvith a plurality of channels adapte to contain Water, and an air moistening unit for each channel comprising a holder resting in each channel and a plurality of absorbent strips held by one end in said holder' and suspended from the respective channels in the casing.

4f: As an article of manufacture, for use spaced apart, means for supplying Water 'to 15 said channels, and a plurality of absorbent strips depending from each transverse channel and having their upper ends in the Water in said channel.

JOHN ZACIUS HANSON. 

